Eagle-eyed fans have noticed and helped to correct an error in HBO Max's recent Harry Potter 20th Anniversary: Return to Hogwarts "retrospective special," where an image of a young Emma Roberts is displayed on screen instead of Emma Watson.

　　"Well spotted Harry Potter fans!" reads a statement from the special's producers, via The Wrap. "You brought an editing mistake of a mislabeled photograph to our attention. New version is up now."

　　As originally aired on January 1, the reunion had a sequence in which Watson discusses her own Harry Potter fandom from a young age--how her father read the books for her and her siblings. The special then cut to a photo of a young girl wearing Mickey Mouse ears. As fans noticed, however, this was a photo that Roberts posted on Instagram back in 2012.

　　In the special, Watson also discusses why she nearly left the Harry Potter franchise after Goblet of Fire.

　　In addition to Watson, actors Daniel Radcliffe and Rupert Grint also appeared in the special. They were joined by Helena Bonham Carter, Robbie Coltrane, Ralph Fiennes, Jason Isaacs, Gary Oldman, Imelda Staunton, Tom Felton, James Phelps, Oliver Phelps, Mark Williams, Bonnie Wright, Alfred Enoch, Matthew Lewis, Evanna Lynch, and Ian Hart. Chris Columbus, who directed the original Harry Potter, also participated. The special makes use of archived interviews of Harry Potter author J.K. Rowling, who has faced criticism over her comments about sex and gender issues.

　　HBO Max recently played host for another high-profile reunion, as the streaming platform also had the popular Friends reunion special earlier last year.

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　　David Wolinsky on Google+